Gree U-Match GU100W/A1-M, Owner'S Manual

Page: 40 / 52

U-Match Series Duct Type Unit
36
⑤ .
Specifications of circuit breaker are based on a working condition where
the working temperature is 40°C. If working condition changes, please
adjust the specifications according to national standards.
⑥ .
Adopt 2pc of 0.75mm² power cords to be the communication cords
between indoor and outdoor units. The maximum length is 100m. Please
select a proper length according to local conditions. Communication
cords must not be twisted together. To be in compliance IOS5151, it is
necessary to use 8 meters long wire.
⑦ .
Adopt 2pc of 0.75 mm² power cords to be the communication cords
between wired control and indoor unit. The maximum length is 30m.
Please select a proper length according to local conditions.
Communication cords must not be twisted together. To be in compliance
IOS5151,it is necessary to use 8 meters long wire.
⑧ .
The wire gauge of communication cord should not be less than 0.75 mm².
It’s recommended to use 0.75 mm² power cords as the communication
cords.
⑨ .
Calculation of the maximum permissible system impedance
：
a) The following evaluation procedure shall be applied if the equipment
emissions cannot meet the technical requirements of IEC 61000-3-3 and
therefore the equipment cannot be declared compliant by the
manufacturer in accordance with 6.2.1. In such a case the equipment
shall only be connected to a supply having a system impedance lower
than Z
ref
.
b) To be in compliance with EN 61000-3-11, impedance value of
power-supply system connected to product must be less than or equal to
the allowable maximum value of |Z
sys
| in the following sheet:
Models Max |Z
sys
| Unit:ohms
GU50W/A1-K 0.170
GU71W/A1-K 0.090
GU85W/A1-K 0.071
GU100W/A1-M 0.416
GU125W/A1-M 0.142
GU140W/A1-M 0.173
GU160W/A1-M 0.193